8" vs. 9" convertor

MoparLeo said

It sounds like you don't really have a 3500 rpm converter in t now. I put a 9" converter in my cousin's 396 Camaro and it acted like it was in neutral until the rpm's hit 3,000 . No fun on the street at all.
Built a lot of heat in the transmission. Use a big cooler.

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My current convertor is a 10", it flashes to 3500 from a high idle and also flashes to 3500 if you do the 3rd gear test with it.

I data log my trans temps. They barely ever go over 160. I have a derale stacked plate cooler.

Modern convertors do not act like they are in neutral until they hit the flash stall.